Atomic Theory Polka! Dalton Thomson Rutherford Bohr And Many More…… Schroedinger Heisenburg Used their brains to venture out in the realm of inner space, And found the world of the atom was a weird and wondrous place. Dalton did experiments and said… “I think it’s clear… Atoms are tiny, indestructible spheres.” Thomson worked with cathode rays and said, “I disagree.” “A plum-pudding model, makes much more sense to me.” A new chapter in atomic theory started to unfold. When Rutherford played around, with atoms made of gold. When a few of his alpha particles came bounding back, He hypothesized a nucleus had knocked them off the track! Bohr saw spectral lines for hydrogen and said, “It seems to me… Electrons move in orbits with specific energies.” Heisenberg said, “Forget it, there’s no way to know, The orbit, or a path, where the electron’s gonna go.” Schroedinger used lots and lots of fancy mathematics, And made a model of the atom based on quantum mechanics. It had orbitals, and those are based on probability The atom is a fuzzy blob of pure uncertainty!